Apple has released Mac OS X 10.5.4 as an upgrade via Software Update.

The update includes the following release notes: The 10.5.4 Update is recommended for all users running Mac OS X Leopard and includes general operating system fixes that enhance the stability, compatibility and security of your Mac.

For detailed information on this update, please visit this website:[http://support.apple.com/kb/HT1994](http://www.macrumors.com/c.php?u=http%3A%2F%2Fsupport.apple.com%2Fkb%2FHT1994&t=1214915403). For detailed information on security updates, please visit this website:[http://support.apple.com/kb/HT1222](http://support.apple.com/kb/HT1222).